I run a very well setup IQr with a Van Emburg, EZRyde, and a 43" zBroz hooked to Exit triple rate shocks and love it. When I first get on a PRO, I immediately complain about not having a wide ProTaper handle bar setup. The narrower stance of the PRO seems to help a lot in the Mountains, but I would probalby ditch the sway bar. Coincidently you would see me lean towards an Assault as I think they have a far more durable setup compared to an RMK/PRO. I'm sure I'll have a PRO of some sort for a back up sled by next Spring or the following Fall. As said before me, I prefer the IQr ergonomics. When I find a PRO in my garage, I will swap the bars for sure and adjust height accordingly. Another thing I don't like about them is the factory track options and would probably invest in a 3 inch PC or Challenger. The PRO is very well balanced and has a good factory setup. With the stance and narrower side panels down low, I would probably agree that the PRO is intended for climbing and side hilling and does a lil better there but an IQr you can bash the living f out of jumping and boondocking. Choose what you like to do more and and go with that chassis but you can't go wrong with either one. :devil: